Discuss October 2007

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268 participants
322 discussions

SNMP and MIB
by Centos 29 Oct '07

29 Oct '07

Hello We have Dell servers and need to monitor them through SNMP. but need to install or insert Dell MIBs to our Centos. is copying MIBs are enough ? has any one is using Dell OpenManage on Centos ? Thanks

3 7

Announcement Project based on CentOS 4.4
by Tronn Wærdahl 29 Oct '07

29 Oct '07

I put together a CD with Open-exchange 0.8.6-5 and more, based on Centos 4.4 When installing the CD, all required software is installed, all that is needed after Os install is to run a config script, that make if fit your enviroment Dependig on the speed on your CDrom the installation should take no more than 30 minutts It install the following: - Open-Exchange 0.8.6-5 - Samba PDC - A PDF printer - Wildfire, a jabber server (for chating ) - Avaadm - Jetti, (jabber webclient) - Squid - Nameserver ( needed when join machins to domain) - Smartsive and websive - Antivirus - Syncml ( but i havent got it to work with any of my clients ) Since it could be so difficult to install, I put this together CD, and I guess allso others would have some use for it Its aviliable for download here http://ntx.waerdahl.net Tronn

9 21

How to create a bootable DVD
by Ern jura 29 Oct '07

29 Oct '07

How can I create a bootable DVD from the ISO I have just downladed?

3 2

Boot Log Problems
by Robert Slade 29 Oct '07

29 Oct '07

Hi, I have just updated from CentOS 4 to 5 and I am seeing a problem with udev during booting, but I am unable to track it down as it looks like the boot.log is not working. The file is there but empty and the previous log only lists events up to the point at which I upgraded. syslog.conf looks ok to me in so much as there is an entry pointing to /var/log/boot.log. Any suggestions as to what I should be looking at? Rob

5 10

forcing device to USB HDD
by Israel Garcia 29 Oct '07

29 Oct '07

Hi, I bought an USB external hdd (500GB) to make my backups using dump... but, sometimes my sever recognize the hdd device /dev/sdb or /dev/sdc... my question is: How can I assign a fixed device for example /dev/sdc to my hdd? remember I use some scripts to do my backup and I am getting errors because the device changes from sdb to sdc and thanks in advance Israel __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

10 10

Interpreting audit logs?
by Scott Ehrlich 29 Oct '07

29 Oct '07

Whenever I review audit logs, it is difficult for me to determine if an account was logged in at an usual day/time because there is no timestamp next to any entry, at least as I interpret the format. How, then do I properly and successfully review the audit log entries based on a date/time stamp? Also, how can I filter out root and sudo account entries, displaying everyone else in audit? Thanks. Scott

2 1

Windows 2003 Server Installation Problem in Centos 5 Xen 3.0.3-25.0.4.
by abhishek singh 29 Oct '07

29 Oct '07

Sorry i forgot to attach screen shot Hi, I am trying to install Windows 2003 server as a guest OS in Centos 5 Xen and installation is freeze , i am attaching screen shot, here is xend log file details [2007-10-29 17:04:11 xend.XendDomainInfo 3413] DEBUG (XendDomainInfo:190) XendDomainInfo.create(['vm', ['name', 'testwin'], ['memory', '1024'], ['maxmem', '1024'], ['vcpus', '2'], ['uuid', '12d4c97e-4cec-5e5d-e94c-d9fc5496a2c5'], ['on_poweroff', 'destroy'], ['on_reboot', 'destroy'], ['on_crash', 'destroy'], ['image', ['hvm', ['kernel', '/usr/lib/xen/boot/hvmloader'], ['device_model', '/usr/lib/xen/bin/qemu-dm'], ['boot', 'd'], ['acpi', '1'], ['apic', '1'], ['pae', '1'], ['vnc', '1'], ['vncunused', '1']]], ['device', ['vbd', ['dev', 'hda:disk'], ['uname', 'file:/virtual/win2003.img'], ['mode', 'w']]], ['device', ['vbd', ['dev', 'hdc:cdrom'], ['uname', 'phy:/dev/hda'], ['mode', 'r']]], ['device', ['vif', ['mac', '00:16:3e:31:0f:03'], ['bridge', 'xenbr0'], ['script', '/etc/xen/scripts/vif-bridge'], ['type', 'ioemu']]]]) [2007-10-29 17:04:11 xend.XendDomainInfo 3413] DEBUG (XendDomainInfo:296) parseConfig: config is ['vm', ['name', 'testwin'], ['memory', '1024'], ['maxmem', '1024'], ['vcpus', '2'], ['uuid', '12d4c97e-4cec-5e5d-e94c-d9fc5496a2c5'], ['on_poweroff', 'destroy'], ['on_reboot', 'destroy'], ['on_crash', 'destroy'], ['image', ['hvm', ['kernel', '/usr/lib/xen/boot/hvmloader'], ['device_model', '/usr/lib/xen/bin/qemu-dm'], ['boot', 'd'], ['acpi', '1'], ['apic', '1'], ['pae', '1'], ['vnc', '1'], ['vncunused', '1']]], ['device', ['vbd', ['dev', 'hda:disk'], ['uname', 'file:/virtual/win2003.img'], ['mode', 'w']]], ['device', ['vbd', ['dev', 'hdc:cdrom'], ['uname', 'phy:/dev/hda'], ['mode', 'r']]], ['device', ['vif', ['mac', '00:16:3e:31:0f:03'], ['bridge', 'xenbr0'], ['script', '/etc/xen/scripts/vif-bridge'], ['type', 'ioemu']]]] [2007-10-29 17:04:11 xend.XendDomainInfo 3413] DEBUG (XendDomainInfo:397) parseConfig: result is {'shadow_memory': None, 'start_time': None, 'uuid': '12d4c97e-4cec-5e5d-e94c-d9fc5496a2c5', 'on_crash': 'destroy', 'on_reboot': 'destroy', 'localtime': None, 'image': ['hvm', ['kernel', '/usr/lib/xen/boot/hvmloader'], ['device_model', '/usr/lib/xen/bin/qemu-dm'], ['boot', 'd'], ['acpi', '1'], ['apic', '1'], ['pae', '1'], ['vnc', '1'], ['vncunused', '1']], 'on_poweroff': 'destroy', 'bootloader_args': None, 'cpus': None, 'name': 'testwin', 'backend': [], 'vcpus': 2, 'cpu_weight': None, 'features': None, 'vcpu_avail': None, 'memory': 1024, 'device': [('vbd', ['vbd', ['dev', 'hda:disk'], ['uname', 'file:/virtual/win2003.img'], ['mode', 'w']]), ('vbd', ['vbd', ['dev', 'hdc:cdrom'], ['uname', 'phy:/dev/hda'], ['mode', 'r']]), ('vif', ['vif', ['mac', '00:16:3e:31:0f:03'], ['bridge', 'xenbr0'], ['script', '/etc/xen/scripts/vif-bridge'], ['type', 'ioemu']])], 'bootloader': None, 'cpu': None, 'maxmem': 1024} [2007-10-29 17:04:11 xend.XendDomainInfo 3413] DEBUG (XendDomainInfo:1264) XendDomainInfo.construct: None [2007-10-29 17:04:11 xend.XendDomainInfo 3413] DEBUG (XendDomainInfo:1296) XendDomainInfo.initDomain: 1 1.0 [2007-10-29 17:04:11 xend 3413] DEBUG (image:329) args: boot, val: d [2007-10-29 17:04:11 xend 3413] DEBUG (image:329) args: fda, val: None [2007-10-29 17:04:11 xend 3413] DEBUG (image:329) args: fdb, val: None [2007-10-29 17:04:11 xend 3413] DEBUG (image:329) args: soundhw, val: None [2007-10-29 17:04:11 xend 3413] DEBUG (image:329) args: localtime, val: None [2007-10-29 17:04:11 xend 3413] DEBUG (image:329) args: serial, val: None [2007-10-29 17:04:11 xend 3413] DEBUG (image:329) args: std-vga, val: None [2007-10-29 17:04:11 xend 3413] DEBUG (image:329) args: isa, val: None [2007-10-29 17:04:11 xend 3413] DEBUG (image:329) args: vcpus, val: None [2007-10-29 17:04:11 xend 3413] DEBUG (image:329) args: acpi, val: 1 [2007-10-29 17:04:11 xend 3413] DEBUG (image:329) args: usb, val: None [2007-10-29 17:04:11 xend 3413] DEBUG (image:329) args: usbdevice, val: None [2007-10-29 17:04:11 xend 3413] DEBUG (image:329) args: k, val: None [2007-10-29 17:04:11 xend 3413] DEBUG (balloon:133) Balloon: 132352 KiB free; 0 to scrub; need 1070492; retries: 20. [2007-10-29 17:04:11 xend 3413] DEBUG (balloon:148) Balloon: setting dom0 target to 3003 MiB. [2007-10-29 17:04:11 xend.XendDomainInfo 3413] DEBUG (XendDomainInfo:1021) Setting memory target of domain Domain-0 (0) to 3003 MiB. [2007-10-29 17:04:13 xend 3413] DEBUG (balloon:127) Balloon: 1071260 KiB free; need 1070492; done. [2007-10-29 17:04:14 xend 3413] INFO (image:136) buildDomain os=hvm dom=1 vcpus=2 [2007-10-29 17:04:14 xend 3413] DEBUG (image:282) dom = 1 [2007-10-29 17:04:14 xend 3413] DEBUG (image:283) image = /usr/lib/xen/boot/hvmloader [2007-10-29 17:04:14 xend 3413] DEBUG (image:284) store_evtchn = 1 [2007-10-29 17:04:14 xend 3413] DEBUG (image:285) memsize = 1024 [2007-10-29 17:04:14 xend 3413] DEBUG (image:286) vcpus = 2 [2007-10-29 17:04:14 xend 3413] DEBUG (image:287) pae = 1 [2007-10-29 17:04:14 xend 3413] DEBUG (image:288) acpi = 1 [2007-10-29 17:04:14 xend 3413] DEBUG (image:289) apic = 1 [2007-10-29 17:04:14 xend 3413] DEBUG (image:435) hvm shutdown watch registered [2007-10-29 17:04:14 xend 3413] DEBUG (DevController:110) DevController: writing {'backend-id': '0', 'virtual-device': '768', 'device-type': 'disk', 'state': '1', 'backend': '/local/domain/0/backend/vbd/1/768'} to /local/domain/1/device/vbd/768. [2007-10-29 17:04:14 xend 3413] DEBUG (DevController:112) DevController: writing {'domain': 'testwin', 'frontend': '/local/domain/1/device/vbd/768', 'dev': 'hda', 'state': '1', 'params': '/virtual/win2003.img', 'mode': 'w', 'online': '1', 'frontend-id': '1', 'type': 'file'} to /local/domain/0/backend/vbd/1/768. [2007-10-29 17:04:14 xend 3413] DEBUG (blkif:24) exception looking up device number for hdc: [Errno 2] No such file or directory: '/dev/hdc' [2007-10-29 17:04:14 xend 3413] DEBUG (DevController:110) DevController: writing {'backend-id': '0', 'virtual-device': '5632', 'device-type': 'cdrom', 'state': '1', 'backend': '/local/domain/0/backend/vbd/1/5632'} to /local/domain/1/device/vbd/5632. [2007-10-29 17:04:14 xend 3413] DEBUG (DevController:112) DevController: writing {'domain': 'testwin', 'frontend': '/local/domain/1/device/vbd/5632', 'dev': 'hdc', 'state': '1', 'params': '/dev/hda', 'mode': 'r', 'online': '1', 'frontend-id': '1', 'type': 'phy'} to /local/domain/0/backend/vbd/1/5632. [2007-10-29 17:04:14 xend 3413] DEBUG (DevController:110) DevController: writing {'state': '1', 'backend-id': '0', 'backend': '/local/domain/0/backend/vif/1/0'} to /local/domain/1/device/vif/0. [2007-10-29 17:04:14 xend 3413] DEBUG (DevController:112) DevController: writing {'bridge': 'xenbr0', 'domain': 'testwin', 'handle': '0', 'script': '/etc/xen/scripts/vif-bridge', 'state': '1', 'frontend': '/local/domain/1/device/vif/0', 'mac': '00:16:3e:31:0f:03', 'online': '1', 'frontend-id': '1', 'type': 'ioemu'} to /local/domain/0/backend/vif/1/0. [2007-10-29 17:04:14 xend 3413] INFO (image:418) spawning device models: /usr/lib/xen/bin/qemu-dm ['/usr/lib/xen/bin/qemu-dm', '-d', '1', '-m', '1024', '-boot', 'd', '-acpi', '-domain-name', 'testwin', '-net', 'nic,vlan=1,macaddr=00:16:3e:31:0f:03,model=rtl8139', '-net', 'tap,vlan=1,bridge=xenbr0', '-vncunused', '-vnclisten', '127.0.0.1'] [2007-10-29 17:04:14 xend 3413] INFO (image:420) device model pid: 4310 [2007-10-29 17:04:14 xend.XendDomainInfo 3413] DEBUG (XendDomainInfo:715) Storing VM details: {'shadow_memory': '7', 'uuid': '12d4c97e-4cec-5e5d-e94c-d9fc5496a2c5', 'on_reboot': 'destroy', 'start_time': '1193657654.32', 'on_poweroff': 'destroy', 'name': 'testwin', 'xend/restart_count': '0', 'vcpus': '2', 'vcpu_avail': '3', 'memory': '1024', 'on_crash': 'destroy', 'image': '(hvm (kernel /usr/lib/xen/boot/hvmloader) (device_model /usr/lib/xen/bin/qemu-dm) (boot d) (acpi 1) (apic 1) (pae 1) (vnc 1) (vncunused 1))', 'maxmem': '1024'} [2007-10-29 17:04:14 xend.XendDomainInfo 3413] DEBUG (XendDomainInfo:750) Storing domain details: {'console/port': '2', 'name': 'testwin', 'console/limit': '1048576', 'vm': '/vm/12d4c97e-4cec-5e5d-e94c-d9fc5496a2c5', 'domid': '1', 'cpu/0/availability': 'online', 'memory/target': '1048576', 'store/ring-ref': '36648', 'cpu/1/availability': 'online', 'store/port': '1'} [2007-10-29 17:04:14 xend 3413] DEBUG (image:458) hvm_shutdown fired, shutdown reason=None [2007-10-29 17:04:14 xend 3413] DEBUG (DevController:143) Waiting for devices vif. [2007-10-29 17:04:14 xend 3413] DEBUG (DevController:149) Waiting for 0. [2007-10-29 17:04:14 xend.XendDomainInfo 3413] DEBUG (XendDomainInfo:940) XendDomainInfo.handleShutdownWatch [2007-10-29 17:04:14 xend 3413] DEBUG (DevController:471) hotplugStatusCallback /local/domain/0/backend/vif/1/0/hotplug-status. [2007-10-29 17:04:14 xend 3413] DEBUG (DevController:471) hotplugStatusCallback /local/domain/0/backend/vif/1/0/hotplug-status. [2007-10-29 17:04:14 xend 3413] DEBUG (DevController:485) hotplugStatusCallback 1. [2007-10-29 17:04:14 xend 3413] DEBUG (DevController:143) Waiting for devices usb. [2007-10-29 17:04:14 xend 3413] DEBUG (DevController:143) Waiting for devices vbd. [2007-10-29 17:04:14 xend 3413] DEBUG (DevController:149) Waiting for 768. [2007-10-29 17:04:14 xend 3413] DEBUG (DevController:471) hotplugStatusCallback /local/domain/0/backend/vbd/1/768/hotplug-status. [2007-10-29 17:04:14 xend 3413] DEBUG (DevController:485) hotplugStatusCallback 1. [2007-10-29 17:04:14 xend 3413] DEBUG (DevController:149) Waiting for 5632. [2007-10-29 17:04:14 xend 3413] DEBUG (DevController:471) hotplugStatusCallback /local/domain/0/backend/vbd/1/5632/hotplug-status. [2007-10-29 17:04:15 xend 3413] DEBUG (DevController:471) hotplugStatusCallback /local/domain/0/backend/vbd/1/5632/hotplug-status. [2007-10-29 17:04:15 xend 3413] DEBUG (DevController:485) hotplugStatusCallback 1. [2007-10-29 17:04:15 xend 3413] DEBUG (DevController:143) Waiting for devices irq. [2007-10-29 17:04:15 xend 3413] DEBUG (DevController:143) Waiting for devices vkbd. [2007-10-29 17:04:15 xend 3413] DEBUG (DevController:143) Waiting for devices vfb. [2007-10-29 17:04:15 xend 3413] DEBUG (DevController:143) Waiting for devices pci. [2007-10-29 17:04:15 xend 3413] DEBUG (DevController:143) Waiting for devices ioports. [2007-10-29 17:04:15 xend 3413] DEBUG (DevController:143) Waiting for devices tap. [2007-10-29 17:04:15 xend 3413] DEBUG (DevController:143) Waiting for devices vtpm. [2007-10-29 17:04:15 xend 3413] INFO (XendDomain:370) Domain testwin (1) unpaused. [2007-10-29 17:06:49 xend 3413] INFO (XendDomain:388) Domain testwin (1) paused. [2007-10-29 17:06:52 xend 3413] INFO (XendDomain:370) Domain testwin (1) unpaused. Can anyone tell me why i am not able to install window 2003 server on xen, Thanks, Abhishek Kumar Singh Now you can chat without downloading messenger. Click here to know how. Chat on a cool, new interface. No download required. Go to http://in.messenger.yahoo.com/webmessengerpromo.php

1 0

accurate file size
by centos＠unixplanet.biz 29 Oct '07

29 Oct '07

Hello I was copying some files from one server to other, that I relized the total file size ( sum of all files ) in one server is a bit more than the one that copied from ( about 6 when I do du -s ) individual file sizes are identical, when I do one by one file comparison, but the sum is different. is there any more accurate way to make sure of integrity of the file. ( other than pgp or signature ) Thanks

8 8

migrating files for centos virtualization, virtual disk no longer boots.
by Jerry Geis 28 Oct '07

28 Oct '07

All, I am playing with virtualization on centos 5. I took my old redhat 7 disks and created a 10GIG virtual disk, I installed redhat 7. Now I am trying to get the EXACT image copied off of my actual redhat 7 disk so that I know it is the same (including all patches, updates and OTHER things I did to it that I have forgotten about). I booted the redhat 7 image just fine at this point. I also copied it for backup so I dont have to install again. So on my centos 5 box I mounted the image with a loop command. mount -t ext3 -o loop,offset=32256 redhat7.img /mnt/image This works fine. Then I logged into the redhat 7 system and executed the command tar --exclude ./proc --exclude ./mnt --exclude ./sys --exclude ./dev -cvf - . | ssh root(a)192.168.1.8 "( cd /mnt/image ; tar xvpf -)" Where 192.168.1.8 is my centos 5 box and /mnt/image the mounted image. The copy seems to go fine. But after I do this when I try to virtualize the redhat7 image it stops at: GRUB When I copy the second image back on top of the first image it then boots again. So glad I made that copy of the image file. What is happening with the tar command that is messing up grub and keeping it from booting? Thanks, Jerry

3 2

Large scale Postfix/Cyrus email system for 100,000+ users
by Matt Shields 28 Oct '07

28 Oct '07

I'm trying to set up a large scale email system that supports 100,000+ IMAP accounts. We have an existing frontend web interface that does a lookup on a mysql db to figure out which IMAP server to connect to for each user. For the email infrastructure we have decided on Postfix and Cyrus. We have configured both to use mysql to get the virtual user information. Because of the way that the infrastructure is (biz reasons) we are not doing shared storage, we have numerous IMAP servers that we distribute accounts across. As we add more users, we image up a new IMAP server. For our business's scaling purposes this was the best plan. What I am having a problem is how do I get postfix to transfer the email to the particular IMAP server that the user account is on. I know that I need to use lmtp and transport, but all the examples I have seen show forwarding all email to 1 IMAP server. I would like Postfix to do a lookup for each mailbox and determine which IMAP server to deliver it to. Anyone have a working example that they could share? It would be greatly appreciated. thanks -matt

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